Welcome to GoY, Paulinep, we hope you enjoy being a member of this friendly and helpful site.
Re-pot in Spring, before leaves open.
Please peruse the last few days questions as this has been answered at least twice, or go to foot of page and check out 'A' for Acers.
If you have any difficulty we'll be happy to help.

Thanks Stjohntongue for your reply sure I'm going to enjoy this site with all its useful helpful and friendly replies. Dont have much time to spend on the computer but its great to know you can find knowledgeable answers from experienced gardeners. Paulinep